Our son was hell-bent on film school for college* and chose his boarding school based on the ability to expand this interest and pursue a cinematography career. Before entering BS, he had twice taken first place in a film category at a major university’s annual digital film competition, and he submitted one of those shorts with his application. It was longer than ten minutes, and it did get viewed.
Go ahead, submit it. You have nothing to lose.
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*He ended up at a service academy. Go figure.